Abstract
What’s the best computer mouse? A comparative study of wrist angles and carp extensor activity when using three mice
Highlights
Maximum voluntary electrical (MVE) activity was performed for each muscle to standardise the sEMG signals
Our results show that a slanted or vertical mouse should be favoured over a standard mouse
Whatever the tasks performed and the mouse-model used, there is always high activity of carpal extensor muscles, which could eventually lead to muscular fatigue or musculoskeletal disorders (MSD)
Summary
In 2013, 74% of women and 68% of men in France used a computer professionally (DARES 2015). Pointing tools are essential to performing a majority of computing tasks today. 68% of women use a static computer workstation and a mouse pointing tool compared with 55% of men (DARES 2010). A standard mouse slants 0° to the horizontal and its usage requires full pronation of the forearm. ISO Standard 9241-410 (2008) states that ‘the neutral posture, or most relaxed posture of the forearm, is believed to be with the hands about 30° from vertical’ (i.e., 60° from the horizontal). Based on this information, many mouse models have been designed to reduce the full forearm pronation required to manipulate a standard mouse. The aim of this study was to compare carp extensor activity and wrist angles, when performing work common tasks with three different mice
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